Quarterly report pursuant to Section 13 or 15(d)

Equity Based Awards - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Detail)

v3.21.2
Equity Based Awards - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Detail) - $ / shares
9 Months Ended
Jul. 14, 2021
Sep. 30, 2021
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Line Items]    
Expected option term (in years) 5 years 4 years 9 months 14 days
Expected volatility 70.00% 70.00%
Risk-free interest rate 0.85% 0.93%
Expected dividend yield 0.00% 0.00%
Fair value of common stock (per share) $ 8.97 $ 6.56
2013 Stock Plan [Member]    
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Line Items]    
Expected option term (in years)   6 years 18 days
Expected volatility   52.70%
Risk-free interest rate   1.20%
Expected dividend yield   0.00%
Fair value of common stock (per share)   $ 1.02